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Postasphyxial encephalopathy in preterm neonates.

K Sridhar1, P Kumar, S Katariya

  • 1Department of Pediatrics, PGIMER, Chandigarh, India.

Indian Journal of Pediatrics
|February 13, 2002
PubMed
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Perinatal asphyxia significantly impacts preterm infants, causing neurological issues and increased mortality. Survivors often face lasting neurological abnormalities, highlighting the need for better interventions.

Area of Science:

  • Neonatal neurology
  • Perinatal medicine
  • Pediatric neurology

Background:

  • Perinatal asphyxia is a critical factor influencing infant neurological development.
  • Limited research exists on post-asphyxial encephalopathy specifically in preterm neonates.

Purpose of the Study:

  • To investigate neurologic and sonographic abnormalities in preterm infants following severe birth asphyxia.
  • To assess the short-term and medium-term outcomes of these infants.

Main Methods:

  • A cohort of 40 preterm neonates with severe birth asphyxia was studied.
  • Neurologic assessments and cranial sonography were performed during hospitalization and up to 3 months corrected age.
  • A control group of preterm infants without asphyxia was included for comparison.

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Main Results:

  • 87.5% of asphyxiated preterm infants exhibited neonatal neurologic abnormalities, versus 17% in controls.
  • Common abnormalities included hypotonia and reduced activity; seizures and depressed sensorium indicated more severe cases.
  • White matter disease (34.5%) and Grade 3/4 intraventricular hemorrhage (25%) were significantly more prevalent in the study group.
  • Mortality was 11 times higher in the asphyxiated group (23% vs 2% in controls).

Conclusions:

  • Survivors of perinatal asphyxia in preterm infants showed a higher incidence of neurological abnormalities at 3 months corrected age.
  • Severity of neonatal encephalopathy and sonographic findings correlated well with patient outcomes.
  • These findings underscore the significant and lasting impact of birth asphyxia on preterm infant neurodevelopment.